Alexlit74: are you trying to run a program in Base1, or jog in Base1?
In the VKRC controller, if you create/change a point using the menues, are you given any option to select which Base and/or Tool is active for that point? If possible, please excise a complete raw-text code snippet (the entire Fold) for a single motion point and post it here for examination.
From a programmatical standpoint, the VKRC is vulnerable to the same KRL hacks as the KRC. If you abandon the inline form structure and write your KRL code "raw" offline, you should be able to have your program operate by manipulating BASE